Surrey’s no.1 reviewed and rated double glazing company


Checkatrade Reviews



Featured Products

windows Sutton, London


Doors Sutton, London


Sash windows Sutton, London

Sliding Sash Windows

French Doors Sutton, London

French Doors

Patio Dors Sutton, London

Patio Doors

Bi-Fold Doors Sutton, London

Bi-Fold Doors

Casement windows Sutton, London

Casement Windows

Tilt & Turn windows Sutton, London

Tilt & Turn Windows

Flush Casement windows Sutton, London

Flush Casement Windows

French windows Sutton, London

French Casement Windows

Sash windows Sutton, London

Sliding Sash Windows

Bay windows Sutton, London

Bow & Bay Windows

Secondary Glazing Sutton, London

Secondary Glazing

uPVC doors Sutton, London

Entrance Doors

Composite doors Sutton, London

Composite Doors

Stable doors Sutton, London

Stable Doors

French doors Sutton, London

French Doors

Patio doors Sutton, London

Patio Doors

Bi-Fold doors Sutton, London

Bi-Fold Doors

Our Promise

Alaskan Windows Ltd built its good name and reputation for double glazing in Sutton and throughout London and Surrey over many years through our no pressure approach to our customers and dispelling many myths about doors and windows. We promise you:


No high pressure selling


No false discounts


Honest advice


We’re not satisfied until you are

Double Glazing Installations in London

Here at Alaskan Windows, we have been installing our double glazing across south west London now for over two decades. This makes us one of the longest serving installers in the double glazing industry for this area. We believe that we offer that personal touch you expect from a local installer, and a result, we strive to deliver the best possible service for the London and Sutton areas.

By specialising in just windows and doors, we are able to ensure that we are only installing the best double glazing in London. We offer a range of different products to the people of London and the surrounding areas, including both uPVC windows, uPVC doors and aluminium models.

These include patio doors, tilt & turn window frames, bi-folding doors and traditional casement frames. For people in south west London and the surrounding areas, we also offer our customers a secondary glazing service.

We acknowledge that when making home improvements, you may not want to replace your Sutton windows entirely. Here at Alaskan, we can install double glazing on existing single glazed frames, improving its general level of security and thermal efficiency.

High Quality Double Glazing

As a local double glazing installer, we are certified Which? Trusted Traders. We are also accredited by the national ‘Buy With Confidence’ scheme, as well as local Sutton trading standards as well. Finally, we are also members of the Double Glazing Network.

This ensures that we are only installing the market’s best products, including Liniar uPVC windows, uPVC doors and Yale locking systems. The latter is widely considered to be the safest and most secure locks money can buy. As a result, when having double glazing installed in south west London, you know that you’re getting an excellent product to match our stellar level of service.

We are also able to boast a Checkatrade rating of around 9.8, which means that people like yourself in the south west London area are raving about our double glazing installations. We are lucky enough to have received well over 1000 reviews for our work, which ensures that our rating is an accurate reflection of the service we deliver in London.

As a tight-knit family business, we look forward to helping you in any way we can with your home improvements and renovations here in the south west London area. You can trust us for Sutton uPVC windows and uPVC doors that excel in both their function and form.

Outstanding Quality

Our double glazed uPVC windows and uPVC doors are of exceptional quality. Not only are they energy efficient and environmentally friendly, but they also meet your needs when it comes to acoustic glass. We only give our customers the very best, and most cutting edge, products on the market.

Bespoke Design

All our uPVC windows and uPVC doors can be tailored to suit your tastes and to complement your home. Alaskan Windows Ltd offer a range of colours to choose from, including woodgrain effects, as well as a selection of glass options.

Whether you are looking for contemporary and chic or period charm, we have a range of uPVC windows and uPVC doors to suit your requirements.

Safe and Secure

Security is an important factor when choosing new double glazed uPVC windows and uPVC doors, so all our products come with the most technologically advanced locking mechanisms and security features.

We want you to be confident that your home is safe and secure, so we provide Secured By Design accredited products that meet your needs.

Double Glazing London


We offer a complete range of uPVC double glazed windows in a variety of styles. You can choose from casement windows to sliding sash windows with many more in between.

Whatever the style of your property, we will have a double glazed window that will enhance the aesthetic and add curb appeal.

Double Glazing Surrey


Whether you need a front door, back door, or sliding door, we have something that will be just right for your home. We will create the perfect double glazed doors for you.

We offer a variety of uPVC doors and composite doors that will appeal to any homeowner. Your uPVC doors can be matched to our range of Sutton uPVC windows to give you a complete look.

Window and Door Prices

We ensure that our Sutton uPVC windows and doors are the best available in today’s double glazing market and our prices are competitive, offering incredible value.

To get a bespoke quote on our range of uPVC windows and uPVC doors, try our online quote calculator.

It’s free to use and there is no obligation to buy. You simply enter your specifications and within a few minutes, you will be provided with a tailored quote.

Alternatively, you can contact us directly. Our friendly, helpful team will be happy to discuss your options and ideas with you. We look forward to hearing from you.

Start Your Quote

Frequently Asked Questions

We do not carry out double glazing repairs to existing units. We only carry out full unit replacement or additional secondary glazing.

All of our products can be fitted with our high quality secondary glazing. Our secondary glazing offers improved thermal performance for your home as well enhanced noise pollution protection.

uPVC, or PVCu stands for unplasticized polyvinyl chloride which is essentially a hard form of PVC that is mainly used Windows & Doors.

Recent Customer Feedback

  • Perfect professionalism from first point of contact to cleaning up after work. Very consistent and thorough in communication. Prices are upfront and fair and most importantly - finished product is perfect. So happy I found them on Checkatrade and decided to solicit a quotation from them. Local London shops and nationwide leaders didn't measure up!

    Customer, Dulwich, London
  • Three workmen carried the work out in just two days, friendly hard working. Douglas and Alastair very friendly and helpful salesmen - never pushy. Great family business - reliable and efficient from start to end.

    Mr Jeeves, Croydon

Industry Leading Accreditations